55 lines
1.7 KiB
C++
55 lines
1.7 KiB
C++
/*
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* Copyright (C) 2003-2013 The Music Player Daemon Project
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* http://www.musicpd.org
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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/** \file
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*
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* Library for working with packed 24 bit samples.
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*/
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#ifndef PCM_PACK_HXX
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#define PCM_PACK_HXX
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#include <stdint.h>
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/**
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* Converts padded 24 bit samples (4 bytes per sample) to packed 24
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* bit samples (3 bytes per sample).
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*
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* This function can be used to convert a buffer in-place.
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*
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* @param dest the destination buffer (array of triples)
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* @param src the source buffer
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* @param num_samples the number of samples to convert
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*/
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void
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pcm_pack_24(uint8_t *dest, const int32_t *src, const int32_t *src_end);
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/**
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* Converts packed 24 bit samples (3 bytes per sample) to padded 24
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* bit samples (4 bytes per sample).
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*
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* @param dest the destination buffer
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* @param src the source buffer (array of triples)
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* @param num_samples the number of samples to convert
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*/
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void
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pcm_unpack_24(int32_t *dest, const uint8_t *src, const uint8_t *src_end);
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#endif
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